A flushing device and flushing method for osteomyelitis surgery

Abstract

The present invention relates to the technical field of medical devices, and specifically to a flushing device and flushing method for intraoperative osteomyelitis. The device includes a carrying box, a bottom of one side of the carrying box is connected to a liquid outlet pipe, a side wall of the carrying box is connected to a suction pipe and a negative pressure component, a top of the carrying box is provided with a liquid storage component, the liquid storage component is connected to a flushing pipe, the flushing pipe is fixedly connected to a flushing head, the suction pipe is fixedly connected to a suction head, the suction head is wrapped around the outside of the flushing head, the flushing head and the suction head are fixedly connected, a plurality of suction holes are circumferentially provided on the side wall of the suction head, a flushing hole is provided on the flushing head, a plurality of anti-blocking holes are provided on the side wall of the flushing head, and a one-way liquid valve is fixedly connected in the anti-blocking holes. The method includes S1 selecting the negative pressure flushing intensity, S2 flushing and suction, and S3 adjusting the balance. The present invention combines the integration of flushing and suction, designs the structure, and uses the flushing liquid sprayed by flushing to clear the suction channel that is easily blocked, thereby improving the efficiency, safety and recovery speed of the operation.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a flushing device and a flushing method used during osteomyelitis surgery. Background Art

[0002] The treatment principles for osteomyelitis are to control the growth and reproduction of pathogens, completely eliminate the lesions, and administer anti-infective therapy. Treatment options include both non-surgical and surgical options. Surgical options are reserved for patients with chronic osteomyelitis or severe disease. These procedures include lesion removal, sequestration, and antibiotic-assisted bone cement filling. Long-term anti-infective therapy is also required postoperatively.

[0003] During surgery, strict cleaning is usually required to remove infected dead bone, inflammatory granulation tissue, and pus to prevent the spread and recurrence of infection. This requires the use of a flushing device to flush out pus and necrotic flesh. Conventional flushing devices generally include a carrying box for a drive pump and several transport tubes for waste liquid and cleaning fluid, achieving flushing and cleaning of the patient's wound and recycling of waste liquid.

[0004] Conventional flushing devices utilize suction holes in a negative pressure-driven suction tube. Because waste products such as pus, necrotic flesh, and inflammatory granulation tissue are viscous and contain a large amount of fiber, they easily accumulate and cause blockage when passing through the suction holes. This not only affects flushing efficiency but can also increase surgical risks and patient suffering. To address this issue, a flushing device and flushing method for intraoperative osteomyelitis surgery have been proposed. The device features optimized structural design and functionality to effectively prevent blockage during the suction process and improve flushing efficiency. Summary of the Invention

[0005] To solve the above problems, the present invention provides a flushing device and flushing method for use during osteomyelitis surgery. By combining flushing and suction, the device is designed to integrate the flushing and suction, and the flushing fluid sprayed by the flushing is used to clear the suction channel that is easily clogged, thereby improving the efficiency, safety of the operation and the speed of patient recovery.

[0006] To achieve the above-mentioned object, the technical solution of the present invention is as follows: a flushing device for intraoperative osteomyelitis, comprising a carrying box, a bottom portion of one side of the carrying box being connected to a liquid outlet pipe, a side wall of the carrying box being connected to a suction pipe and a negative pressure component for providing a negative pressure force, a top portion of the carrying box being fixedly connected to a liquid storage component for pumping flushing liquid, the liquid storage component being connected to a flushing pipe, an end of the flushing pipe away from the liquid storage component penetrating through the side wall of the carrying box, extending to the outside of the carrying box and being fixedly connected to a hollow flushing head, and a side of the suction pipe away from the carrying box being fixedly connected to a hollow suction head;

[0007] The diameter of the suction tube is larger than the diameter of the flushing tube. The suction tube is connected with the flushing tube body and after the connection, the suction tube is wrapped around the outside of the flushing tube. The volume of the suction head is larger than the volume of the flushing head. The suction head is wrapped around the outside of the flushing head. The flushing head is fixedly connected to the end of the suction head away from the suction tube, and a gap is provided between the outer wall of the flushing head and the inner wall of the suction head. Several suction holes are opened circumferentially on the side wall of the suction head. A flushing hole is opened on the end of the flushing head away from the flushing tube. Several anti-blocking holes corresponding to the positions of the suction holes are opened on the side wall of the flushing head. A one-way liquid valve is fixedly connected in the anti-blocking hole.

[0008] The technical principle of the above scheme is as follows: the liquid storage component is driven to pump the irrigation liquid out of the liquid storage component, and the irrigation liquid flows through the irrigation tube to the irrigation head, and is finally ejected at a certain pressure and flow rate at the irrigation hole to irrigate the tissue at the wound. The negative pressure component starts to work, generating a negative pressure force. The diameter of the suction tube is larger than the irrigation tube, and the suction tube is wrapped around the outside of the irrigation tube, forming an annular channel connecting the inside and the outside. Under the action of negative pressure, the waste liquid and tissue fragments after irrigation are sucked into the suction tube through the suction hole opened in the side wall of the suction head. Finally, the waste liquid then flows into the carrying box through the suction tube and is finally discharged from the system through the liquid outlet pipe. During the irrigation process, if the suction hole is blocked by tissue fragments or other substances, the anti-blocking hole opened in the side wall of the irrigation head will come into play. The one-way liquid valve fixedly connected in the anti-blocking hole allows the irrigation liquid to flow from the inside of the irrigation head to the outside, but prevents the waste liquid and debris from flowing in the opposite direction. When the irrigation liquid is ejected through the anti-blocking hole, its impact force can flush out the foreign matter blocking the suction hole, thereby keeping the suction hole unobstructed.

[0009] The above scheme has the following beneficial effects:

[0010] 1. In this solution, the design of the irrigation head and suction head ensures that the irrigation liquid can act on the wound area accurately, and at the same time, the waste liquid and tissue fragments can be quickly and thoroughly absorbed. This not only shortens the operation time, but also significantly improves the cleanliness and quality of the irrigation, providing a clearer and cleaner field of view for subsequent surgical treatment.

[0011] 2. In this solution, the specially designed anti-blocking hole and one-way liquid valve constitute an innovative anti-blocking mechanism, which can promptly flush out foreign objects that may block the suction hole during the flushing process, thereby avoiding the problem of poor flushing or interruption caused by blockage. This not only improves the stability of the operation, but also reduces the surgical risks that may be caused by equipment failure.

[0012] 3. This solution, by providing an efficient and safe irrigation solution, helps shorten surgical time and reduce postoperative complications, thereby accelerating patients' recovery. This not only improves patients' quality of life but also reduces the burden on medical institutions, bringing tangible benefits to both doctors and patients.

[0013] Furthermore, a piston plate is slidably connected in the carrying box body and is used to separate the carrying box body into two closed chambers. The piston plate separates the carrying box body into a piston chamber and a negative pressure chamber.

[0014] Beneficial effects: Through the sliding connection of the piston plate in the carrying box, the device can flexibly divide the carrying box into two closed chambers: the piston chamber and the negative pressure chamber. This design not only ensures the stable storage and pumping of the irrigation liquid in the piston chamber, but also ensures the effective sealing and negative pressure generation of the negative pressure chamber when absorbing waste liquid. Therefore, the irrigation liquid can act on the wound area more accurately and evenly, and the waste liquid can be absorbed more quickly and thoroughly, thereby significantly improving the irrigation efficiency and quality. In addition, the design of the piston plate enables the negative pressure chamber to form a relatively independent closed space, which helps to maintain the stability and continuity of the negative pressure when the negative pressure component is working. A stable negative pressure environment can more effectively absorb waste liquid and tissue fragments, reducing the problem of poor absorption or interruption caused by negative pressure fluctuations. At the same time, the sealing of the negative pressure chamber also avoids interference from external air or liquid, further improving the absorption effect.

[0015] Furthermore, a plurality of springs are fixedly connected to the side of the piston plate close to the piston cavity, and the sides of the springs away from the piston plate are fixedly connected to the inner side wall of the piston cavity.

[0016] Beneficial effects:

[0017] Several springs fixedly attached to the piston plate near the piston chamber provide a stable reset mechanism for the piston plate. When the negative pressure force within the negative pressure chamber or the pressure of the flushing fluid changes, the springs automatically adjust the piston plate's position, ensuring that the piston and negative pressure chambers remain effectively separated. This not only enhances the stability and reliability of the device but also prevents piston plate misalignment or leakage caused by pressure fluctuations. Furthermore, the spring design acts as a buffer against pressure fluctuations. Large pressure fluctuations may occur within the device during flushing fluid pumping or negative pressure suction. The springs absorb these fluctuations, reducing impact and wear on the piston plate, the support housing, and other components, extending the device's service life and improving its overall performance and durability.

[0018] Furthermore, the liquid storage assembly includes a liquid storage box body, the top of the liquid storage box body is connected to a first water pump for providing force to pump the flushing liquid, a plurality of liquid holes are opened at the bottom of the liquid storage box body, the flushing pipe is embedded in the piston plate, and the end of the flushing pipe away from the flushing head is fixedly connected to the top of the piston plate and the movement trajectory of the flushing pipe covers all liquid holes.

[0019] Beneficial Effects: The liquid storage tank in the liquid storage assembly works in conjunction with the first water pump to stably and efficiently provide flushing fluid. The first water pump, through its pumping force, transports the flushing fluid in the liquid storage tank through the flushing tube to the flushing head, ensuring a continuous supply of flushing fluid during surgery. Furthermore, by providing a number of fluid holes at the bottom of the liquid storage tank and designing the flushing tube's movement trajectory to cover these holes, the device can more effectively utilize the flushing fluid in the liquid storage tank. When the piston plate moves, the flushing tube can pass through each fluid hole in turn, ensuring that the flushing fluid in the liquid storage tank is evenly and fully utilized. This design not only improves the utilization rate of the flushing fluid, but also reduces flushing fluid waste, thereby lowering surgical costs.

[0020] Furthermore, the diameters of the plurality of liquid holes increase sequentially in a direction away from the piston cavity, and the diameter of the connection point between the flushing pipe and the top of the piston plate is larger than the diameter of the liquid hole with the largest diameter.

[0021] Beneficial Effects: The design of gradually increasing diameter holes also reduces flushing fluid waste. During the flushing process, the flushing fluid sequentially passes through holes of varying diameters, resulting in a gradually decreasing flow rate and a relatively increased flow rate. This allows for more efficient use of the flushing fluid and avoids splashing or loss caused by excessive flow. Therefore, this design not only improves flushing fluid utilization, but also reduces surgical costs and enables control of flushing intensity.

[0022] Furthermore, an infrared sensor is fixedly connected to the inner wall of the piston cavity away from the piston plate, and the infrared sensor signal is connected to the controller. The inner walls of the liquid holes are fixedly connected to solenoid valves, and the solenoid valves are connected to the controller signal.

[0023] Beneficial effects: The inner walls of several liquid holes opened at the bottom of the liquid storage box are fixedly connected to the solenoid valves, which provide a precise means for controlling the flow of the flushing fluid. Through the signal instructions of the controller, the solenoid valve can be opened or closed in real time, thereby realizing precise adjustment of the flushing fluid flow, which not only ensures the stable supply of flushing fluid during the operation, but also allows the doctor to flexibly adjust the flow and flow rate of the flushing fluid according to the needs of the operation to achieve the best flushing effect. In addition, through the precise control of the solenoid valve and the intelligent sensing of the infrared sensor, this design can ensure that the flushing fluid is released only when needed, thereby avoiding the waste of flushing fluid, which not only improves the utilization rate of the flushing fluid, but also reduces the cost of surgery, bringing more economic benefits to medical institutions and patients.

[0024] Furthermore, a plurality of limit grooves corresponding to the positions of the liquid holes are opened on the bottom wall of the liquid storage box body, a limit plate is hinged in the limit groove, and a torsion spring is provided at the hinge between the limit plate and the limit groove.

[0025] Beneficial effect: When the piston plate moves in the piston cavity, its bottom can contact the limit plate, thereby limiting excessive movement or shaking of the piston plate. When the piston plate contacts the limit plate, a relatively sealed contact surface can be formed between them, which helps prevent the flushing liquid from leaking out of the gap between the piston plate and the liquid storage box.

[0026] Furthermore, the negative pressure chamber is connected to the liquid outlet pipe, and the other end of the liquid outlet pipe away from the negative pressure chamber is connected to the negative pressure component. The negative pressure component is fixedly connected to the side wall of the negative pressure chamber. The negative pressure component includes a second water pump for providing negative pressure suction force, and the second water pump is connected to the controller signal.

[0027] Beneficial effects: The connection design between the negative pressure chamber and the liquid outlet pipe, as well as the introduction of the negative pressure component, provide an efficient and reliable means for removing the flushing fluid and contaminants during the flushing process. When the flushing fluid completes the flushing task, the second water pump starts under the instruction of the controller to generate a negative pressure suction force, and the flushing fluid in the negative pressure chamber and the flushed contaminants are sucked away through the liquid outlet pipe. This not only ensures the cleanliness of the surgical area, but also avoids the retention of the flushing fluid in the wound, reducing the risk of postoperative infection. In addition, through the coordinated work of the negative pressure chamber and the negative pressure component, an integrated process of flushing and suction is realized. During the flushing process, the flushing fluid flows out through the liquid hole and acts on the wound area; and after the flushing is completed, the negative pressure component starts immediately to quickly suck away the flushing fluid and contaminants. This seamless flushing and suction process not only improves the efficiency of the operation, but also ensures the continuous cleanliness of the surgical area.

[0028] Furthermore, a touch screen for the user to select the negative pressure suction gear is fixedly connected to the top of the liquid storage box, and the touch screen is connected to the controller signal.

[0029] Beneficial Effects: The touchscreen design, fixed to the top of the reservoir, provides an intuitive and easy-to-use interface. Users can easily select the desired negative pressure suction level through the touchscreen, eliminating the need for tedious manual adjustments or complex setup steps. This design not only simplifies the operating process but also improves user convenience and satisfaction.

[0030] A method for flushing a flushing device during osteomyelitis surgery, based on the flushing device during osteomyelitis surgery, comprises the following steps:

[0031] S1, select the negative pressure irrigation intensity: the operator places the suction head and the irrigation head on the patient's wound, and selects the negative pressure suction gear by touching the touch screen according to the wound condition;

[0032] S2, flushing and aspiration: The flushing liquid is flushed out through the flushing hole. The operator manually controls the direction of the flushing head and the aspiration head to align with the tissue to be flushed. At the same time, the waste liquid after flushing will be sucked into the gap through the aspiration hole under the action of the negative pressure generated by the second water pump, and collected through the aspiration tube and the negative pressure chamber. In addition, during the flushing process, part of the flushing liquid will be ejected through the anti-blocking hole to flush out foreign matter blocking the aspiration hole;

[0033] S3, adjust the balance: during the flushing process, the operator observes the flushing situation and adjusts the gear of the negative pressure absorption. When the touch gear is raised, the controller receives the signal from the touch screen and sends a signal to enhance the power of the second water pump, so that the negative pressure force generated by the second water pump is enhanced, and the negative pressure in the negative pressure chamber is enhanced. Under the action of air pressure, the piston plate moves away from the piston chamber to the negative pressure chamber, so that the water inlet end of the flushing pipe is aligned with the liquid hole with a larger diameter, the flow area of ​​the flushing liquid is increased, and the flow rate of the flushing liquid is increased. At the same time, the stronger negative pressure effect balances the amount of flushing and collected waste liquid. When the touch gear is lowered, the piston plate moves in the opposite direction, the negative pressure effect is reduced, the flushing pipe is aligned with the liquid hole with a smaller diameter, the flow area of ​​the flushing liquid is reduced, and the flow rate of the flushing liquid is reduced, thereby realizing the adjustment of the flushing intensity.

[0034] Beneficial effects: The overall design of the flushing method takes into account the actual needs of doctors, improves the convenience of operation and the actual experience of doctors. In addition, the flushing method is highly intelligent and automated, which helps shorten the operation time and improves the efficiency of the operation. Accurate flushing and waste fluid collection help reduce the risk of complications during the operation. The reduction in the difficulty of operation allows doctors to focus more on the operation or the accuracy of flushing, thereby improving the safety of the operation.

[0035] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 Schematic diagram of the overall structure of a flushing device for use in osteomyelitis surgery and a flushing method thereof according to an embodiment of the present invention;

[0037] Figure 2 A front cross-sectional view of an irrigation head and an aspiration head of an embodiment of an irrigation device and an irrigation method for use during osteomyelitis surgery according to the present invention;

[0038] Figure 3 It is a front cross-sectional view of a carrying box of an embodiment of a flushing device and flushing method for intraoperative osteomyelitis surgery according to the present invention;

[0039] Figure 4 The present invention is a schematic flow chart of a flushing method according to an embodiment of a flushing device and flushing method for use during osteomyelitis surgery.

[0040] The figure marks in the drawings of the specification include: 1. supporting box; 101. piston chamber; 102. negative pressure chamber; 2. liquid outlet pipe; 3. flushing pipe; 4. flushing head; 5. suction pipe; 6. suction head; 7. gap; 8. suction hole; 9. flushing hole; 10. anti-blocking hole; 11. one-way liquid valve; 12. piston plate; 13. spring; 14. first water pump; 15. liquid hole; 16. solenoid valve; 17. infrared sensor; 18. limit groove; 19. limit plate; 20. second water pump; 21. touch screen. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0044] The following is further described in detail through specific implementation methods:

[0045] Example 1:

[0046] As attached Figure 1 、 Figure 2 and Figure 3As shown: A flushing device for intraoperative osteomyelitis, including a carrying box 1, a liquid outlet pipe 2 is connected to the bottom of one side of the carrying box 1, and a piston plate 12 is slidably connected to the carrying box 1 through a slider groove, which is used to separate the carrying box 1 into two closed chambers. The piston plate 12 separates the carrying box 1 into a piston chamber 101 and a negative pressure chamber 102. The design of the piston plate 12 enables the existence of the negative pressure chamber 102 to form a negative pressure environment, which helps to attract and discharge the waste liquid after flushing, and further improve the efficiency of collecting waste liquid. The closed chamber enables the negative pressure to move the position of the piston plate 12, which is conducive to the subsequent selection of the most appropriate flushing pressure according to the specific situation and surgical requirements to achieve the best flushing effect. Several springs 13 are welded to the side of the piston plate 12 close to the piston chamber 101, and the side of the springs 13 away from the piston plate 12 is welded to the inner wall of the piston chamber 101. The several springs 13 make the piston plate 12 move toward the negative pressure chamber 102 when there is negative pressure in the negative pressure chamber 102, and slowly return to the initial position close to the piston chamber 101 after the negative pressure in the negative pressure chamber 102 loses the negative pressure. Through the elastic deformation of the several springs 13, the position of the piston plate 12 is dynamically controlled according to the size of the negative pressure absorption function. This dynamic adjustment can ensure that the flushing and absorption process can act continuously and evenly on the osteomyelitis lesion, thereby improving the stability of the device. The liquid outlet pipe 2 is connected to the negative pressure chamber 102. The end of the liquid outlet pipe 2 away from the negative pressure chamber 102 is connected to a negative pressure component for providing negative pressure force. The negative pressure component includes a second water pump 20. The negative pressure force provided by the second water pump 20 can more effectively extract the waste liquid in the negative pressure chamber 102, avoid the waste liquid from being retained in the device, ensure the smooth progress of the flushing process, and enable the flushing device to continue to maintain a clean state, thereby improving the flushing efficiency and ensuring the flushing effect during the operation. The second water pump 20 signal is connected to the controller to achieve precise control of the negative pressure force. The doctor can adjust the size of the negative pressure through the controller according to the needs of the operation to meet the requirements of different flushing stages.

[0047] The diameters of the plurality of liquid holes 15 increase successively in the direction away from the piston chamber 101. When the flushing liquid flows out from the bottom of the liquid storage box, it will pass through the liquid holes 15 of different diameters. Due to the principles of fluid mechanics, when the liquid flows through the hole with a larger diameter, under the same pumping driving force, the increase in the flow area allows more flushing liquid to pass through, and the diameter of the connection between the flushing pipe 3 and the top of the piston plate 12 is larger than the diameter of the liquid hole with the largest diameter, so that the flushing pipe 3 can accommodate the flushing liquid passing through the liquid holes 15 of all diameters. The flushing pipe 3 is aligned with the liquid holes 15 of different diameters to achieve control of the flushing liquid flow rate and speed. In addition, the flushing pipe 3 moves with the movement of the piston plate 12, so that the intensity of the negative pressure suction is related to the flushing liquid flow rate and flushing intensity, and the diameter of the liquid hole 15 is adjusted. The distribution can adapt to the flushing needs of different surgical sites and lesion types. For example, for larger lesion sites or surgeries that require stronger flushing force, the power of the second water pump 20 is increased, and the piston plate 12 is moved toward the negative pressure chamber 102, so that the larger diameter liquid hole 15 is aligned with the flushing tube 3, thereby increasing the flow rate of the flushing liquid and increasing the suction efficiency. In addition, on the one hand, the design that can gradually increase in the direction away from the piston chamber 101 can balance the suction and flushing processes, avoid the situation where the flushing volume increases but the suction cannot be completed, and improve the stability of the flushing process. On the other hand, the flushing intensity can be adjusted by adjusting the negative pressure action power of the second water pump 20, which is convenient and fast, reduces the response time of the control system, and improves the practicality of the device by replacing the transmission of system signals with mechanical movement.

[0048] A liquid storage component for pumping flushing liquid is welded to the top of the supporting box 1, and the liquid storage component is connected to the flushing pipe 3. The liquid storage component includes a liquid storage box, and the top of the liquid storage box is connected to a first water pump 14 for providing a force for pumping flushing liquid. The first water pump 14 provides a stable flushing liquid pumping force for the liquid storage box to ensure that the flushing process can continue and will not be interrupted due to insufficient flushing liquid. A number of liquid holes 15 are opened at the bottom of the liquid storage box, and the flushing pipe 3 is embedded in the piston plate 12. The end of the flushing pipe 3 away from the flushing head 4 is fixedly connected to the top of the piston plate 12 and the movement trajectory of the flushing pipe 3 covers all the liquid holes 15. The flushing liquid enters the flushing pipe 3 through the liquid holes 15. The pumping force generated by the first water pump 14 causes the flushing liquid to be pumped out for flushing. The design of the liquid holes 15 allows the flushing liquid to be evenly distributed and flow into the piston cavity 101, ensuring that the flushing liquid can fully cover and act on the lesion site.

[0049] The end of the flushing pipe 3 away from the liquid storage box body passes through the side wall of the carrying box body 1 and extends to the outside of the carrying box body 1 and is fixedly connected with a hollow flushing head 4. The suction pipe 5 is fixedly connected with a hollow suction head 6 away from the side of the carrying box body 1. The diameter of the suction pipe 5 is larger than the diameter of the flushing pipe 3. The suction pipe 5 is connected to the flushing pipe 3 and after the connection, the suction pipe 5 is wrapped around the outside of the flushing pipe 3. The volume of the suction head 6 is larger than the volume of the flushing head 4. The suction head 6 is wrapped around the outside of the flushing head 4. The flushing head 4 is away from the flushing pipe 3. One end is fixedly connected to the suction head 6 away from the end of the suction tube 5, and a gap 7 is provided between the outer wall of the flushing head 4 and the inner wall of the suction head 6. A plurality of suction holes 8 are opened in the circumferential direction of the side wall of the suction head 6. A flushing hole 9 is opened at the end of the flushing head 4 away from the flushing tube 3. A plurality of anti-blocking holes 10 corresponding to the positions of the suction holes 8 are opened on the side wall of the flushing head 4. A one-way liquid valve 11 is fixedly connected in the anti-blocking hole 10. The one-way liquid valve 11 allows the flushing liquid to flow from the flushing head 4 to the suction head 6, reducing the waste liquid from entering the flushing head 4 and contaminating the flushing. The probability of washing liquid is improved, the cleanliness of the washing process is improved, and the safety of the patient is ensured. The washing liquid is pumped by the first water pump 14 into the liquid storage box and flows into the washing pipe 3 through the liquid hole 15. The washing pipe 3 transports the washing liquid from the top of the piston plate 12 to the washing head 4 at one end away from the liquid storage box. The washing head 4 sprays the washing liquid at a certain pressure and flow rate to the lesion site through the washing hole 9 opened therein for cleaning. At the same time, the suction pipe 5 uses the negative pressure pumping action of the second water pump 20 through its suction head 6 on the side away from the supporting box 1 to suck out the waste liquid, pus, tissue fragments, etc. from the lesion site. The waste liquid is sucked into the gap 7 through the suction hole 8 and then transported through the space between the suction pipe 5 and the washing pipe 3. The combined design of the washing head 4 and the suction head 6 realizes the simultaneous washing and suction, improving the efficiency of the operation. The washing liquid can be accurately sprayed to the lesion site, and the suction head 6 can quickly suck out the waste liquid, etc., ensuring the cleanliness of the surgical area. In addition. The design of the anti-blocking hole 10 ensures that part of the flushing liquid will be flushed out through the anti-blocking hole 10 when the flushing head 4 sprays the flushing liquid. The design of the position facing the suction hole 8 enables the flushing liquid sprayed from the anti-blocking hole 10 to have a clearing effect on the suction hole 8 that may be blocked, which is beneficial to reduce the blockage of the suction hole 8 due to excessive blood clot waste liquid, improve the smoothness of the flushing process, and improve the efficiency of the operation.

[0050] Example 2:

[0051] As attached Figure 3As shown, the difference from Example 1 is that the inner wall of the liquid hole 15 is fixedly connected with a solenoid valve 16, the signal of the solenoid valve 16 is connected to the controller, and the inner wall of the piston chamber 101 away from the piston plate 12 is fixedly connected with an infrared sensor 17, the infrared sensor 17 is connected to the controller signal, the infrared sensor 17 can monitor the position or movement state of the piston plate 12 in real time, and feed back the signal to the controller. The controller can determine whether the piston plate 12 has reached the specified position based on these signals, and thus signal to open the solenoid valve 16 at the corresponding position. In this way, the flushing strategy can be adjusted in time according to actual conditions, the flushing efficiency can be improved, the probability of the flushing liquid falling directly into the negative pressure chamber 102 for recovery can be reduced, and the flushing efficiency can be improved.

[0052] Example 3:

[0053] As attached Figure 3 As shown, the difference from Example 2 is that a plurality of limit grooves 18 corresponding to the positions of the liquid holes 15 are opened on the outer bottom wall of the liquid storage box body, and a limit plate 19 is hingedly connected to the limit groove 18. The design of the limit plate 19 and the limit groove 18 provides an additional support and limiting mechanism for the piston plate 12. When the piston plate 12 moves in the piston chamber 101, its bottom can contact the limit plate 19, thereby limiting excessive movement or shaking of the piston plate 12. When the piston plate 12 contacts the limit plate 19, a relatively sealed contact surface can be formed between them, which helps to prevent the flushing liquid from leaking out of the gap 7 between the piston plate 12 and the liquid storage tank body. A torsion spring is provided at the hinge between the limit plate 19 and the limit groove 18. On the one hand, the elastic force of the torsion spring can ensure that the limit plate 19 fits tightly to the corresponding position of the piston plate 12 or the liquid storage tank body, further enhancing the sealing effect. On the other hand, the torsion spring can set a negative pressure threshold for the movement of the piston plate 12, so that the power of the second water pump 20 makes the negative pressure reach a specific size before the piston plate 12 can be moved to the next limit plate 19 through the limit of the limit plate 19, thereby improving the synchronization of the suction and flushing processes and reducing losses during the movement process.

[0054] Example 4:

[0055] As attached Figure 3 As shown, the difference from Example 3 is that a touch screen 21 for the user to select the negative pressure suction gear is fixedly connected to the top of the liquid storage box. The touch screen 21 is connected to the controller signal. The touch screen 21 provides an intuitive and simple operation method. The user can select the required negative pressure suction gear with just a touch. Through the touch screen 21, the user can easily switch between different negative pressure suction gears to adapt to different flushing needs. This design makes the system more flexible, able to cope with a variety of complex flushing scenarios, and reduces the difficulty of using the device.

[0056] Example 5:

[0057] As attached Figure 4 As shown, the flushing method for using a flushing device during osteomyelitis surgery is based on the flushing device used during osteomyelitis surgery described in Examples 1-4, comprising the following steps:

[0058] S1, select the negative pressure irrigation intensity: the operator places the suction head 6 and the irrigation head 4 on the patient's wound, and selects the negative pressure suction gear by touching the touch screen 21 according to the wound condition;

[0059] S2, flushing and aspiration: The flushing liquid is flushed out through the flushing hole 9. The operator manually controls the direction of the flushing head 4 and the aspiration head 6 to align with the tissue to be flushed. At the same time, the waste liquid after flushing is sucked into the gap 7 through the aspiration hole 8 under the action of the negative pressure generated by the second water pump 20, and is collected through the aspiration tube 5 and the negative pressure chamber 102. In addition, during the flushing process, part of the flushing liquid is ejected through the anti-blocking hole 10 to flush out foreign matter blocking the aspiration hole 8;

[0060] S3, adjust the balance: during the flushing process, the operator observes the flushing situation and adjusts the gear of the negative pressure absorption. When the touch gear is raised, the controller receives the signal of the touch screen 21 and sends a signal to enhance the power of the second water pump 20, so that the negative pressure force generated by the second water pump 20 is enhanced, and the negative pressure of the negative pressure chamber 102 is enhanced. Under the action of air pressure, the piston plate 12 moves away from the piston chamber 101 to the negative pressure chamber 102, so that the water inlet end of the flushing pipe 3 is aligned with the liquid hole 15 with a larger diameter, increasing the flow area of ​​the flushing liquid and increasing the flow rate of the flushing liquid. At the same time, the stronger negative pressure effect makes the amount of flushing and collected waste liquid reach a balance. When the touch gear is lowered, the piston plate 12 moves in the opposite direction, the negative pressure effect is reduced, and the flushing pipe 3 is aligned with the liquid hole 15 with a smaller diameter, reducing the flow area of ​​the flushing liquid and reducing the flow rate of the flushing liquid, thereby realizing the adjustment of the flushing intensity.

[0061] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A flushing device for osteomyelitis surgery, comprising a carrying box (1), wherein a liquid outlet pipe (2) is connected to the bottom of one side of the carrying box (1), and the device is characterized in that: The side wall of the carrying box (1) is connected to a suction pipe (5) and a negative pressure component for providing a negative pressure force. The top of the carrying box (1) is fixedly connected to a liquid storage component for pumping a flushing liquid. The liquid storage component is connected to a flushing pipe (3). The flushing pipe (3) extends from the side wall of the carrying box (1) to the outside of the carrying box (1) and is fixedly connected to a hollow flushing head (4). The suction pipe (5) is fixedly connected to a hollow suction head (6) on the side away from the carrying box (1). A piston plate (12) is slidably connected in the bearing box (1) and is used to separate the bearing box (1) into two closed chambers. The piston plate (12) separates the bearing box (1) into a piston chamber (101) and a negative pressure chamber (102). A plurality of springs (13) are fixedly connected to the side of the piston plate (12) close to the piston chamber (101), and the sides of the springs (13) away from the piston plate (12) are fixedly connected to the inner wall of the piston chamber (101); The diameter of the suction tube (5) is larger than the diameter of the flushing tube (3), the suction tube (5) and the flushing tube (3) are connected and after the connection, the suction tube (5) is wrapped around the outside of the flushing tube (3), the volume of the suction head (6) is larger than the volume of the flushing head (4), the suction head (6) is wrapped around the outside of the flushing head (4), the end of the flushing head (4) away from the flushing tube (3) is fixedly connected to the end of the suction head (6) away from the suction tube (5), and a gap (7) is provided between the outer wall of the flushing head (4) and the inner wall of the suction head (6), a plurality of suction holes (8) are opened in the circumferential direction of the side wall of the suction head (6), a flushing hole (9) is opened at the end of the flushing head (4) away from the flushing tube (3), a plurality of anti-blocking holes (10) corresponding to the positions of the suction holes (8) are opened on the side wall of the flushing head (4), and a one-way liquid valve (11) is fixedly connected in each of the anti-blocking holes (10); The liquid storage assembly includes a liquid storage box body, the top of the liquid storage box body is connected to a first water pump (14) for providing a pumping force for flushing liquid, the bottom of the liquid storage box body is provided with a plurality of liquid holes (15), a flushing pipe (3) is embedded in the piston plate (12), and the end of the flushing pipe (3) away from the flushing head (4) is fixedly connected to the top of the piston plate (12), and the movement trajectory of the flushing pipe (3) covers all the liquid holes (15).

2. The intraoperative irrigation device for osteomyelitis according to claim 1, characterized in that: The diameters of the plurality of liquid holes (15) increase in sequence in a direction away from the piston chamber (101), and the diameter of the connection point between the flushing pipe (3) and the top of the piston plate (12) is larger than the diameter of the liquid hole (15) with the largest diameter.

3. The intraoperative irrigation device for osteomyelitis according to claim 2, characterized in that: An infrared sensor (17) is fixedly connected to the inner wall of the piston chamber (101) away from the piston plate (12), and the infrared sensor (17) signal is connected to the controller. The inner wall of the liquid hole (15) is fixedly connected to the solenoid valve (16), and the solenoid valve (16) is connected to the controller signal.

4. The intraoperative irrigation device for osteomyelitis according to claim 3, characterized in that: The outer bottom wall of the liquid storage box body is provided with a plurality of limit grooves (18) corresponding to the positions of the liquid holes (15), the limit plates (19) are hinged in the limit grooves (18), and a torsion spring is provided at the hinge between the limit plate (19) and the limit grooves (18).

5. The intraoperative irrigation device for osteomyelitis according to claim 4, characterized in that: The negative pressure chamber (102) is connected to the liquid outlet pipe (2), and the other end of the liquid outlet pipe (2) away from the negative pressure chamber (102) is connected to the negative pressure component. The negative pressure component is fixedly connected to the side wall of the negative pressure chamber (102). The negative pressure component includes a second water pump (20) for providing a negative pressure suction force. The second water pump (20) is connected to the controller signal.

6. The intraoperative irrigation device for osteomyelitis according to claim 5, characterized in that: A touch screen (21) for a user to select a negative pressure suction gear is fixedly connected to the top of the liquid storage box, and the touch screen (21) is connected to the controller signal.

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